The Apple iMac G5 1.8Ghz 20" uses memory upgrades as listed in the detailed specifications below. All memory and other upgrades compatible with this system are listed on this page.

Need Assistance? Please call and speak with one of our expert technicians at 800-240-8577 or US 404-935-4048 to verify exact system specs before ordering.
Memory Type
Base Memory 256 MB
Upgrade Slots 2
Maximum Memory 2 GB
Maximum Module Size 1GB
CPU & Chipset 1.8 GHz PowerPC 970 (G5) 1
Bus Architecture ~
Manufacturer Part Numbers
  • M9250LL/A
  • N/A (EMC 2008)
  • PowerMac8,1

Released On: August 31, 2004. Discontinued On: May 3, 2005

Part Number 43.5C3
400MHz 200pin CL3
Call to Order
$12.99
View Product
Part Number 431C3
400MHz 200pin CL3
In Stock
$15.99
View Product
Part Number 43.5C3H
400MHz 200pin CL3
Call to Order
$19.99
View Product
Part Number 43.5C3-2
400MHz 200pin CL3
Call to Order
$24.99
View Product
Part Number 431C3H
400MHz 200pin CL3
In Stock
$24.99
View Product
Part Number 431C3-2
400MHz 200pin CL3
In Stock
$30.99
View Product
Part Number 43.5C3-2H
400MHz 200pin CL3
Call to Order
$39.99
View Product
Part Number 431C3-2H
400MHz 200pin CL3
In Stock
$49.99
View Product
Part Number 431C3-2
400MHz 200pin CL3
In Stock
$30.99
View Product
Part Number 431C3-2H
400MHz 200pin CL3
In Stock
$49.99
View Product
Part Number 431C3
400MHz 200pin CL3
In Stock
$15.99
View Product
Part Number 43.5C3-2
400MHz 200pin CL3
Call to Order
$24.99
View Product
Part Number 431C3H
400MHz 200pin CL3
In Stock
$24.99
View Product
Part Number 43.5C3-2H
400MHz 200pin CL3
Call to Order
$39.99
View Product
Part Number 43.5C3
400MHz 200pin CL3
Call to Order
$12.99
View Product
Part Number 43.5C3H
400MHz 200pin CL3
Call to Order
$19.99
View Product

Upgrade References

The table below are references to other manufacturer part numbers which are specific to this device, have identical specifications to our components. This information is made available for your reference.
Part# Source References
No Part Information Currently Available